make sure that you're fighting the LAST boss which is the alien ship not the spider thing and make sure that you load the save game from the autosave and not a custom one or sometimes it won't lock on.

make sure that you're fighting the LAST boss which is the alien ship not the spider thing and make sure that you load the save game from the autosave and not a custom one or sometimes it won't lock on.

Yes, and make sure you don't do it while behind cover, move to open space, and target the left arm first.

You can only use it when psycho tells you to use the TAC cannon to blast it. After lowering its shields. Thats when you aim for the extreme left portion of the ship. You do the same for the right side.

I keep falling through the carrier deck, didn't have this problem anywhere else in the game only in the last 15 minutes of the game. About to finish, about to finish, nope, falling through the deck...and dead. Everything was aces till this part, can someone say need patch!